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INSTALLATION INSTRUCTIONS
4. Use of a dampener is necessary to minimize
pulsation at drive elements, plumbing, connections,
and other system areas. The use of a dampener with
Giant Industries, Inc. pumps is optional, although
recommended by Giant Industries, Inc. to further
reduce system pulsation. Dampeners can also
reduce the severity of pressure spikes that occur in
systems using a shut-off gun. A dampener must be
positioned downstream from the unloader.
5. Crankshaft rotation on Giant Industries, Inc.
pumps should be made in the direction designated by
the arrows on the pump crankcase. Reverse rotation
may be safely achieved by following a few guidelines
available upon request from Giant Industries, Inc.
Required horsepower for system operation can be
obtained from the charts on pages 3-5 and page 8.
6. Before beginning operation of your pumping
system, remember: Check that the crankcase and
seal areas have been properly lubricated per recom-
mended schedules. Do not run the pump dry for
extended periods of time. Cavitation will result in
severe damage. Always remember to check that all
plumbing valves are open and that pumped media
can flow freely to the inlet of the pump.
Installation of the Giant Industries, Inc., pump is not a
complicated procedure, but there are some basic
steps common to all pumps. The following informa-
tion is to be considered as a general outline for
installation. If you have unique requirements, please
contact Giant Industries, Inc. or your local distributor
for assistance.
1. The pump should be installed flat on a base to a
maximum of a 15 degree angle of inclination to ensure
optimum lubrication.
2. The inlet to the pump should be sized for the flow rate
of the pump with no unnecessary restrictions that can
cause cavitation. Teflon tape should be used to seal all
joints. If pumps are to be operated at temperatures in
excess of 160
0
F, it is important to insure a positive head
to the pump to prevent cavitation.
3. The discharge plumbing from the pump should be
properly sized to the flow rate to prevent line pressure
loss to the work area. It is essential to provide a safety
bypass valve between the pump and the work area to
protect the pump from pressure spikes in the event of a
blockage or the use of a shut-off gun.
Finally, remember that high pressure operation in a pump system has many advantages. But, if it is used carelessly
and without regard to its potential hazard, it can cause serious injury.
IMPORTANT OPERATING CONDITIONS
Failure to comply with any of these conditions invalidates the warranty.
1. Prior to initial operation, add oil to the crankcase so
that oil level is between the two lines on the oil dipstick.
DO NOT OVERFILL.
Use SAE 80-90W or Giant’s p/n 01154 or ISO
VG220 industrial gear lube oil
Crankcase oil should be changed after the first 50
hours of operation, then at regular intervals of 500 hours
or less depending on operating conditions.
2. Pump operation must not exceed rated pressure, volume,
or RPM. A pressure relief device must be installed in the
discharge of the system.
3. Acids, alkalines, or abrasive fluids cannot be pumped
unless approval in writing is obtained before operation from
Giant Industries, Inc.
4. Run the pump dry approximately 10 seconds to drain the
water before exposure to freezing temperatures.